127147816 has 8 divisors (see below), whose sum is σ = 238402170. Its totient is φ = 63573904.

The previous prime is 127147759. The next prime is 127147819. The reversal of 127147816 is 618741721.

It can be written as a sum of positive squares in only one way, i.e., 111386916 + 15760900 = 10554^2 + 3970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×127147816² = 32333134227139712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127147819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7946731 + ... + 7946746.

Almost surely, 2^127147816 is an apocalyptic number.

It is an amenable number.

127147816 is a deficient number, since it is larger than the sum of its proper divisors (111254354).

127147816 is a wasteful number, since it uses less digits than its factorization.

127147816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15893483 (or 15893479 counting only the distinct ones).

The product of its digits is 18816, while the sum is 37.

The square root of 127147816 is about 11275.9840368812. The cubic root of 127147816 is about 502.8475072866.

The spelling of 127147816 in words is "one hundred twenty-seven million, one hundred forty-seven thousand, eight hundred sixteen".